Myghty Template Error

Error: Error(AttributeError): 'NoneType' object has no attribute 'strip'
File: /srv/www/dfb/turniere.fechten.org/htdocs/methods/ausschreibung.psp line 95
Context: 92: %
93: %
94:   </kategorie>
95:   <wettkampfort><line><![CDATA[<% A["wettkampfort"].strip().replace('\n', ']]></line><line><![CDATA[') %>]]></line></wettkampfort>
96:   <wettkampfort_zusatz><line><![CDATA[<% A["wettkampfort_zusatz"] and A["wettkampfort_zusatz"].strip().replace('\n', ']]></line><line><![CDATA[') or '' %>]]></line>
97:   </wettkampfort_zusatz>
98:   <ende><% V["ende"].strftime(df[language]) %></ende>
Traceback: /srv/www/dfb/turniere.fechten.org/htdocs/methods/ausschreibung.psp:95
/srv/www/dfb/turniere.fechten.org/htdocs/dhandler:17
/srv/www/dfb/turniere.fechten.org/htdocs/autohandler:2
/srv/www/dfb/turniere.fechten.org/bin/turniere.wsgi:12


Original Stack Trace:

Error: Error(AttributeError): 'NoneType' object has no attribute 'strip'
File: /srv/www/dfb/turniere.fechten.org/myghty/obj/main//methods/ausschreibung.psp.py line 193
Context: 190:                      # SOURCE LINE 95
191:                      m.write(u'''  </kategorie>
192:   <wettkampfort><line><![CDATA[''')
193:                      m.write( A["wettkampfort"].strip().replace('\n', ']]></line><line><![CDATA[') )
194:                      # SOURCE LINE 96
195:                      m.write(u''']]></line></wettkampfort>
196:   <wettkampfort_zusatz><line><![CDATA[''')
Traceback: /srv/www/dfb/turniere.fechten.org/myghty/obj/main//methods/ausschreibung.psp.py:193
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/component.py:128
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:389
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:305
/srv/www/dfb/turniere.fechten.org/myghty/obj/main//dhandler.py:45
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/component.py:128
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:389
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:300
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:725
/srv/www/dfb/turniere.fechten.org/myghty/obj/main//autohandler.py:36
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/component.py:128
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:389
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:250
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/exception.py:61
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/request.py:270
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/http/HTTPHandler.py:138
/usr/lib/python2.5/site-packages/Myghty-1.1.1-py2.5.egg/myghty/http/WSGIHandler.py:60
/srv/www/dfb/turniere.fechten.org/bin/turniere.wsgi:12